Holder for cop-tubes, bobbins, spools, or the like.



S. W. WARDWELL & 0. A. BRINK. HOLDER FOR 00P TUBES, ROBBINS, SPOOLS, OR THE LIKE.

APPLIO'A TION FILED MAR. 27, 1912.

Patented Nov 111, 1913.

WITN ESSES TES PrgENT OFFICE.

SIMON W. WARDWELL AND CARL A. BRINK, or PROVIDENCE, nnonn ISLAND, AS-

SIGNORS T0 WARDWELL BRAIDING MACHINE COMPANY, or PORTLAND, MAINE, A

CORPORATION or MAINE.

HOLDER FOR COP-TUBES, BOBBINS, SPOOLS, OR THE LIKE.

Specification of Letters Patent.

Patented Nov. 11,1913.

Application filed March 27, 1912. Serial No. 686,519.

To all whom it may concern:

Be it known that we, SIMON \V. VARU- WELL and CARL A. BnlNK, citizens oi? the United States, residing at Providence, in the county of Providence and State of .lihode Island, have invented certain new and useful Improvements in Holders for Cop- Tubes, Bobbins, Spools, or the like, of which the following is a specification.

Our invention relates to cop-tube, bobbin or spool holders for use with braiding, winding or other textile machines and consists of improvements in the means for securing the cop-tube, bobbin or spool on the spindle to adapt it to rotate therewith.

The object of our improvement is to provide a holder adapted to receive bobbins, cop-tubes or spools having bores of varying sizes and to center them on the spindle while securing them rotatively therewith.

The invention is fully set forth in the following specification, illustrated by the accompanying drawings, in which Figure 1 is a longitudinal view of a coptube holder adapted for use on braiding machines or for other purposes where the yarn is to be unwound from the. cop or package; Fig. 2, an end -view ot the same; Fi 3, a transverse, sectional view of the ho der taken on line A-A of Fig. 1; Fig. i, a longitudinal View of a winding spindle, showing our improvement applied thereto; Fig. 5, an end view of the same.

Referring to the drawings, in Fig. love have illustrated a holder designed Pfi!tltlllarly for use on braiding machines to support the rotating supply cops or bobbins from which the yarn is delivered. The same arrangement might also be used for other purposes such as to unwind yarn from cops or spools in delivering it to winding or other machines employed in the various manufacturing processes.

' The cop-tube holder B is mounted to rotate on a. dead spindle C and usually a brake-wheel or flange 1) is provided to control the ro'ation of the holder-l in its present form the holder proper COI'SISiF oi a sleeve 1) which is preferably formed up from a tube with its ends rounded in and erimped at d and d to form hearings and (7 fitted to the spindle C. A collar 0r liaupfe e is formed integral with or secured on the e d place thereon. At (Z the crimped portion at the tube is flattened into the radially projecting ribs or splines d" and d, which are adapted to engage the interior of the (op-tube oi, as more fully explained hereinafter. At the outer end of the sleeve D the tube is formed with radial cars d, d, which are made. hollow to receive the ends 0, e, of a double, wire spring ltl shaped something like a hairpin. Preferably, the ends of the springs are secured in the ears cl by crimp-- ing the metal tightly around them. The outer end of the spring E is curled over at r to provide an abutment e which engages the end of the cop-tube a: when the latter is placed in position on the holder.

The means for securing the cop-tube or bobbin rotatively on the holder consists essentially of a split sleeve F mounted on the sleeve D and having one of its longitudinally extending edges bent radially outward to form a blade adapted to indent a The engage the inner surface of the tube.

sleeve 1* is constructed with its inside diam cter slightly larger than the outside diameter of the sleeve D so that it floats loosely on the latter to allow it to contact and expand radially, according to variations in the bore of the cop-tube At its inner end the sleeve F is provided with a slot f through which one of the blades d" projet-ts; and the opposite blade (1 projects through the longitudinal slit f in the sleeve. The sleeve 1* is also slotted at f, f on opposite sides of its outer end to provide openings for the ears 1!", d, and the ends of the slots engage the inner ends of the ears to retain he sleeve in place on the holder. The outer end of the sleeve F is preferably reduced in diameter or rounded over at f to adapt it to enter the tube easily.

()ne of the edges of the sleeve 1 bordering on the. slit f is bent radially outward at f, see Fig. 2. to provide a. sharp blade adapted lo engage .hc inner surface of the coptube .1:. ()n the diametrically opposite side from this blade f the sleeve 1" is formed up with two radially projecting, longitudinal rilrs f", f, which are also adapted to slightly indent the inner surface of the tube a: when the latter is slid onto the holder. The two ribs f, f" and the blade f" serve as a threepoint bearing to centralize the cop-tube on of the spindle C to hold the sleeve D the holder and the. sleeve l being spring tempered, will expand or contract to a slight extent to adapt it to fit tubes which vary somewhat in the size of their bores. The ribs (5, d and the ears cl, engaging the slots in the sleeve F, hold the latter from turning on the sleeve D and the several parts of the holder are rotated as a whole when the cop or other supply package is turned by drawing off the yarn. hen the holder is used for this purpose, that is, for delivering the yarn from the cop, the latter'is placed on the holder so that in drawing off the yarn the tube 00 will turn in the direction indi cated by the arrow 3/, Fig. 2. As the tube is turned in this direction it acts to force the blade f more firmly into engagement with its interior and tends to expand the whole sleeve F so that it takes a firm grip on the tube. The ribs d and (Z assist in holding the tube a: but are not absolutely necessary to the practical working of the device. It will be understood that the blade 7, acting as a dog, serves to rotate the holder and the spring E retains the tube longitudinally on the holder against the action of centrifugal force when the device is revolved rapidly on the braiding machine. To remove the tube as from the holder it is only necessary to turn it in the direction opposite to that indicated by the arrow y, Fig. 2, and thetendency will then be to contract the sleeve F so that the tube can be easily withdrawn therefrom, after the spring E is released.

In Figs. a and 5 we have illustrated another embodiment of the invention and shown the device applied to a live spindle adapted for use with winding, spooling or spinning machines. The holding sleeve F is here shown mounted directly on the spin dle G and held rotatively therewith. The spindle G is preferably formed with a slot or keyway 9 extending longitudinally thereof and also with a peripheral groove 9" at its end. The sleeve F is of practically the same construction as the sleeve F shown in Figs. 1 and 2, except that the means for securing it rotatively on the spindle are slightly changed. A portion of the edge of the slit 7" opposite to the blade 7 is cut away and bent radially inward at f to provide a feather or key adapted to engage the keyway g of the spindle and at its outer end the sleeve F is formed with aura]: f, also bent radially inward and adaptt'o to engage the peripheral slot g, see Fig. 5. The key f secures the sleeve F rotatively with the spindie G and the ear f holds it longitudinally thereo The spindle G is adapted to rotate in the direction indicated hyihc arrowz Fig. 5,and the upturned edge of blade f of the sleeve F serves to drive the cop-tube or bobbin to wind the am thereon. The tension on the yarn wil of course create a resistance to the rotation of the cop-tube and this acts to engage the blade 7' more firmly with the interior of the tube and also tends to expand the sleeve F to take a firmer grip on the bore of the tube, all as previously explained. The tube is re leased from the holder by turning it in the direction indicated by the arrow 2 to contract the sleeve F.

\V e have illustrated the invention as used for holding the ordinary form of paper or 4 fiber cop-tube, but it is obvious that the device is equally well adapted for holding bobbins, spools or the like which are generally constructed of wood. Owing to inaccuracies of manufacture and other causes the usual commercial form of cop tubes, bobbins, spools, etc.. vary considerably in the diameters of their bores. Furthermore, their bores are never absolutely straight and true and the wood is liable to shrink and swell. The present holder is designed especially to meet these conditions and the adjustable feature of the split sleeve which receives the tube or spool adapts it to fit various sizes of bores and to conform to irregularities in the bores. The spring tendency of the sleeve is suflicicnt to adapt it to expand to fit the tube snugly, but, on the other h and, the sleeve can contract when necessary, so that there is no danger of splitting the bobbin or spool.

In operation, the turning of the co on the spindle or, vice versa, the turning o the spindle to rotate the cop serves to grip the tube more firmly to prevent slipping; and a reverse turn of the cop releases the holding sleeve from its engagement with the tube so that the latter cannot bind on the holder, but is easily withdrawn. This latter is an important feature, for when the cop is wound on a paper tube the constriction of the coils of winding will contract the tube and make it bind on the holder so that with the ordinary devices it is often well nigh impossible to withdraw it.

Various modifications might be made in the form and structure of our device without departing from the spirit or scope of the invention.

Tlherefore, without limiting ourselves to the exact construction shown, what we claim 1. Tu a holder for cop-tubes, bobbins, spools or the like, the combination with a spindle, of a split-sleevemounted on the spindle with one of its longitudinally-extending edges formed to engage the interior surface of the cop tube to secure the latter rotativcly with the holder, said sleeve adapted to be expanded by the pressure of the tube against its edge during rotation of the holder to force said edge into firmer engagement with the tube.

2. In a holder for cop-tubes, bobbins, spools or the like, the combination with a spindle formed with a longitudinal. slot, of

a longitudinally-split sleeve mounted on the spindle with one of the edges of its split portion bent radially inward and engaging the slot in the spindle to secure it rotatively therewith, and the opposite edge of the split portion bent radially outward to engage the interior of the cop-tube, said sleeve so arranged as to adapt it to expand radially through pressure against its outwardly-bent edge to force said edge into firmer engagement with the tube.

3. In a holder forcop-tubes or the like, the combination with a spindle formed With a longitudinal slot and an annular groove, of a split-sleeve mounted on-said spindle and having projections bent radially inward to ranged that the pressure of the tube against 20 said edge during rotation acts to expand the sleeve to force the edge to indent the interior of the tube.

In testimony whereof We afiix' our signatures in presence of two Witnesses.

SIMON W. WARDWELL. CARL A. BRINK. Witnesses:

ARTHUR A. ARMINGToN, HE BERT K. ALLAm). 

